<!DOCTYPE html>
<head>
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
  <script src="./support/resolve-spv.js"></script>
  <meta http-equiv="Content-Security-Policy"
        content="require-trusted-types-for 'script'">
</head>
<body>
  <div id="log"></div>
  <svg id="svg"><script id="script">"some script text";</script></svg>
  <script>
    const policy = trustedTypes.createPolicy("policy", {
        createScript: x => x, createHTML: x => x, createScriptURL: x => x });

    promise_test(t => {
      assert_throws_js(TypeError, _ => {
        document.getElementById("script").innerHTML = "'modified via innerHTML';";
      });
      return promise_spv();
    }, "Assign String to SVGScriptElement.innerHTML.");

    promise_test(t => {
      document.getElementById("script").innerHTML = policy.createHTML("'modified via innerHTML';");
      return Promise.resolve();
    }, "Assign TrustedHTML to SVGScriptElement.innerHTML.");

    promise_test(t => {
      const elem = document.createElementNS(
          "http://www.w3.org/2000/svg", "script");
      elem.innerHTML = policy.createHTML("'modified via innerHTML';");
      document.getElementById("svg").appendChild(elem);
      return promise_spv();
    }, "Assign TrustedHTML to SVGScriptElement.innerHTML and execute it.");

    promise_test(t => {
      const elem = document.createElementNS(
          "http://www.w3.org/2000/svg", "script");
      elem.insertBefore(document.createTextNode("modified via DOM"), null);
      document.getElementById("svg").appendChild(elem);
      return promise_spv();
    }, "Modify SVGScriptElement via DOM manipulation.");
  </script>
</body>
